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12300000000 = 2835841
BaseRepresentation
bin10110111010010001…
…10001101100000000
31011202012121201222120
423131020301230000
5200142300000000
65352303404240
7613543163211
oct133510615400
934665551876
1012300000000
115242036062
1224732b3680
131210362612
148497d1408
154bec7e6a0
hex2dd231b00

12300000000 has 324 divisors, whose sum is σ = 41917947288. Its totient is φ = 3200000000.

The previous prime is 12299999951. The next prime is 12300000001. The reversal of 12300000000 is 321.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (12300000001) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 299999980 + ... + 300000020.

Almost surely, 212300000000 is an apocalyptic number.

12300000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12300000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20958973644).

12300000000 is an abundant number, since it is smaller than the sum of its proper divisors (29617947288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12300000000 is an frugal number, since it uses more digits than its factorization.

12300000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

Adding to 12300000000 its reverse (321), we get a palindrome (12300000321).

It can be divided in two parts, 12 and 300000000, that multiplied together give a square (3600000000 = 600002).

The spelling of 12300000000 in words is "twelve billion, three hundred million", and thus it is an aban number.